Config\Factory can read from include_path
Merge pull request #4574 from bacinsky/feature/config-factory-read-from-include-path

Config\Factory can read from include_path
[#4574] Only run stream_resolve_include_path when necessary

- i.e., when `file_exists()` fails
- Raise an exception if it still cannot be found
Merge branch 'hotfix/4574' into develop

Close #4574